Liquid fuel burner



LQUID FUEL BURNER Filed Aug. 5, 1936 TCE-L...

Jbph Mohr' Patented May 17,` 1938 UNITED STATES PATENT oFFic-E Qmlllmn Joseph Mohr, Richmond. Va.

Application August 5, 1936, Serial No. 94,458

2 Claims.

The invention aims to provide an exceptionally simple and inexpensive, yet` an efficient and desirable liquid fuel burner which is designed primarily for use in toy motor-boats of the jet type, yet is not restricted to such use.

In carrying out the above end, a further object is to provide a liquid fuel burner of such construction that gravity assists in feeding fuel through a wick-containing tube extending from the fuel reservoir, the discharge of fuel through said tube being throttled to the desired extent by fitting the wick tightly into the tube.

A further object is to provide a fuel reservoir formed from a cylindrical tube preferably closed at one end and having a removable closure at its other end, and to so shape the outer end of ,said removable closure as to hold the reservoir4 against lateral tilting when placed upon a support.

Yet another object is to provide a burner particularly adapted for support upon the usual parallel jet tubes which extend rearwardly from the boiler of a toy boat of the jet type.

With the foregoing and minor objects in view, the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accomn panying drawing.

Fig. l is a side elevation partly broken away and in section showing the burner operatively positioned in a toy boat. I

Fig. 2 is a perspective view showing the boiler and jet tubes of the boat, and the burner resting upon said tubes.

Fig. 3 is a central Vertical longitudinal sectional view, partly in elevation. through the burner.

Fig. i is a transverse sectional View on lin i--il of Fig. l.

The fuel reservoir of the burner is formed from a horizontal cylindrical tube t having a permanently closed end 6, and an ordinary cork or other plug l fitting removably into the other end of said tube. The plug I is provided with an enlarged outer end 8 which projects beyond the tube E, the lower side 9 of said enlarged plug end being flattened or otherwise shaped to pre- `Vent the tube from rolling or laterally tilting when placed upon a support;

The plug 'l is formed with a central longitudinal opening I through which one end portion of a vwick tube Il is threaded, the screw threads being preferably covered with red lead or other sealing medium before threading the tube through the plug. The outer end portion of the tube II is preferably of substantially U-shape as shown at I2 and terminates in an upwardly directed extremity I3 which is at about the same elevation as the upper side of the tube so that gravity may assist feeding of fuel 5 through the tube II but cannot alone accomplish this end. A wick Il extends' through the tube I2 and projects slightly from the terminal I3 thereof, andthe natural absorptive qualities of the Wick coact with gravity in properly feeding 10 the fuel from the reservoir. To prevent too rapid discharge of fuel, the wick is tightly fitted into the tube, exerting a throttling action.

To permit air to enter the tube 5, as fuel leaves the same, a small air admission opening I5 is formed in the top of said tube 5 a safe distance from the flame end of the burner.

The burner is intended primarily to rest upon the two horizontally spaced and horizontally disposed parallel Jet tubes I6 extending rearwardly from the boiler lll of a toy motor-boat IB, with the burner flame so positioned as to heat the boiler. When used in this way, the tube 5 rests upon and partially between the jet tubes It and the lower side 9 of the plugl l rests upon 25 the upper sides of said tubes i6 to hold the entire burner against any lateral tilting or rolling and to also assist in initially placing the burner in position with the flame directed up wardly against the boiler. With the burner thus supported, it will remain in proper position even though the child playing with the toy may create a rather rough sea in which to navigate the craft.

The part l@ shown in Fig. 3 is merely a wire a5 4connected with the inner end of the wick It.

This wire is usedin initially threading the wick through the tube il and may be left attached for use when one wick has been consumed and another is to be inserted, preventing loss of the Wire.

' `0n account of the extreme simplicity yet eiliciency of the specific construction herein disclosed, said construction is preferably followed.

However, within the scope of the invention as claimed, variations may be made as to structure and use, and obviously the invention is not restricted to size or proportions. For example, instead of the Wick tube II being curved as shown, it may be straight with the outer end 5 extending upwardly at a right angle. Y

I clairnzy 1. A liquid fuel burner comprising a horizontal fuel-containing tube having apermanent closure at one end, a plug fitting removably into the end, a wick tube extending outwardly from and carried by said removable. closure, said wick tube having an upwardly directed outer end whose upper extremity is at about the same elevation as the top of said fuel-containing tube to permit gravity to assist in feeding fuel through said wick tube,'said top of the fuel-containing tube being provided with an air admission opening, and a wick tting tightly in said wick tube and serving to Ithrottle the passage of fuel therel0 through.

JOSEPH MOHR. 

